Input validation vulnerability in Booking Ultra Pro Appointments Booking Calendar Plugin 1.1.20

The Booking Ultra Pro plugin for WordPress has a security issue called Stored Cross-Site Scripting, which can affect versions up to 1.1.20. This happens because the plugin does not properly clean up user input and output, making it possible for attackers with administrator-level access to insert harmful scripts into pages. This can only happen on websites with multiple installations, or if a specific setting is disabled.

Detected in:

Booking Ultra Pro Appointments Booking Calendar Plugin open vulnerable versions: >= * <= 1.1.20

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Version compare shows which versions have a vulnerability. For example: >= 2.2.8 <= 2.2.21 means:

> from 2.2.8
= including 2.2.8 & 2.2.21
< to 2.2.21

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